My install was doing that as well. It took me a while, but playing with dev tools like Chrome’s “Inspect Element” let me isolate the CSS rules until I found the culprit. I did a cursory check on your site, but didn’t see where there was anything similar to my CSS solution. Good luck!
Thanks for taking a look. I found the BP-Notification widget.. Its an old sidebar widget that has not been updated in 2 years but it still works. So, I’m just going to disable the buddybar for now and settle for sidebar notifications. As long as my site members can view them easily i’m happy.